. Natural history of animals;. Zoology. 194 ARTHROPODS: ARACHNIDS. holes in each knob. Through these the invisible silken threads pass out, —more than four thousand at a time, — and at a little distance from the knobs all these unite into one, forming the single line of spider web which all are so familiar with. As the threads issue from the knobs they are a sticky fluid, — which has. Fig. 340. —Spider — L3'cosa. been secreted in little bags in the abdomen ; but this hardens into silk as soon as it comes to the air. The length of the line which the Spider is able to produce is truly wonderful.
. Natural history of animals;. Zoology. 194 ARTHROPODS: ARACHNIDS. holes in each knob. Through these the invisible silken threads pass out, —more than four thousand at a time, — and at a little distance from the knobs all these unite into one, forming the single line of spider web which all are so familiar with. As the threads issue from the knobs they are a sticky fluid, — which has. Fig. 340. —Spider — L3'cosa. been secreted in little bags in the abdomen ; but this hardens into silk as soon as it comes to the air. The length of the line which the Spider is able to produce is truly wonderful. Dr. Wilder wound nearly two miles of silk, in less than a day, from his celebrated Ncpliila plujnifics, — a Spider which he discovered in South Car- olina. The kinds of Spider are very numerous, and most of them spin some sort of a net-like web, in or near which they live, and by means of which they cap- ture insects for food. The House Spider spreads a flat net in the corners of rooms. The Geometric Spider spreads a vertical net, which is made in the most beau- tiful manner, radiating lines running from the center,. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Tenney, Sanborn, 1827-1877; Tenney, Abby Amy Gove, 1836-. New York, Cincinnati [etc. ] American book Co
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectzoology, bookyear1895
